12.6x0.76x0.4x8x2.5 9.8除以0.25+0.2x4 111x3.6-0.2x4
答案:1 悬赏:60 手机版
解决时间 2021-04-02 12:49
- 提问者网友：嘚啵嘚啵
- 2021-04-01 11:58
12.6x0.76x0.4x8x2.5 9.8除以0.25+0.2x4 111x3.6-0.2x4
最佳答案
- 五星知识达人网友：封刀令
- 2021-04-01 12:34
12.6×0.76×0.4×8×2.5
=12.6×0.76×8×(0.4×2.5)
=12.6×0.76×8
=12.6×8×0.76
=100.8×0.76
=100×0.76+0.8×0.76
=76.608
9.8÷0.25+0.2×4
=9.8×4+0.2×4
=(9.8+0.2)×4
=10×4
=40
111×3.6-0.2×4
=111×9×0.4-0.8
=999×0.4-0.8
=(1000-1)×0.4-0.8
=1000×0.4-1×0.4-0.8
=400-0.4-0.8
=398.8追问确定追答你的题敢确定我就确定追问好
=12.6×0.76×8×(0.4×2.5)
=12.6×0.76×8
=12.6×8×0.76
=100.8×0.76
=100×0.76+0.8×0.76
=76.608
9.8÷0.25+0.2×4
=9.8×4+0.2×4
=(9.8+0.2)×4
=10×4
=40
111×3.6-0.2×4
=111×9×0.4-0.8
=999×0.4-0.8
=(1000-1)×0.4-0.8
=1000×0.4-1×0.4-0.8
=400-0.4-0.8
=398.8追问确定追答你的题敢确定我就确定追问好
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